Change 'TypeCache' from being an std::map to a llvm::DenseMap.  This reduces codegen time
on one .i file from 403.gcc by 0.5%.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99823 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed